克氏针茅草原植物群落种间联结性及稳定性研究——以阿拉腾陶高图嘎查牧户草场为例
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摘要
为研究锡林郭勒盟克氏针茅草原植物群落种间联结性及群落稳定性,以阿巴嘎旗阿拉腾陶高图嘎查牧户草场为例,采用X2检验法、Spearman秩相关分析、Pearson相关分析、Schluter方差比例法、M.Godron稳定性测定法对群落种间关系和稳定性进行分析。结果显示:阿拉腾陶高图嘎查牧户草场内植物群落种间独立性强,联结较为松散,联结性较差;样方内植物群落总体联结较差,植物群落处于动态演替的不稳定性阶段。牧户草场容易因放牧干扰而产生草场生产力退化和生态系统失衡等问题。
For the sake of study and analyze the interspecific association and community stability of the plant community of Stipa krylovii steep,this paper took a case of Alatengtaogetu village in Abaga county.X2 test,Jaccard interspecific association index,Spearman rank correlation analysis,Pearson correlation analysis,Schluter variance ratio method,and M.Godron stability assay were used to analyze the interspecific relationships and stability of the community.The conclusions are as follows:The plant communities in the pastures of the Alateng Taogao map were strong,the linkages were loose,and the association was poor.The overall connection of the plant communities in the plots was poor,and the plant communities were in the unstable stage of dynamic succession.In the future,pastoral pastures are prone to problems such as grassland productivity degradation and ecosystem imbalance due to grazing disturbances.
For the sake of study and analyze the interspecific association and community stability of the plant community of Stipa krylovii steep,this paper took a case of Alatengtaogetu village in Abaga county.X2 test,Jaccard interspecific association index,Spearman rank correlation analysis,Pearson correlation analysis,Schluter variance ratio method,and M.Godron stability assay were used to analyze the interspecific relationships and stability of the community.The conclusions are as follows:The plant communities in the pastures of the Alateng Taogao map were strong,the linkages were loose,and the association was poor.The overall connection of the plant communities in the plots was poor,and the plant communities were in the unstable stage of dynamic succession.In the future,pastoral pastures are prone to problems such as grassland productivity degradation and ecosystem imbalance due to grazing disturbances.
引文
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[2]Tilman D.Causes,consequences and ethics of biodiversity[J].Nature,2000,405:208-211.
[3]吴艳玲,吕世杰,刘红梅,等.不同放牧强度对短花针茅草原植物种群种间关系的影响[J].生态科学,2016(6):34-40.
[4]何光熊,闫帮国,纪中华,等.元谋干热河谷Savanna草地优势植物的种间关系[J].草业学报,2018(6):62-71.
[5]王国庆.封育对草甸草原植物生态位、种间联结及功能群的影响[D].大庆:黑龙江八一农垦大学,2018.
[6]张东梅,赵文智,罗维成.荒漠草原带盐碱地优势植物生态位与种间联结[J].生态学杂志,2018(5):1307-1315.
[7]简小枚,税伟,王亚楠,等.重度退化的喀斯特天坑草地物种多样性及群落稳定性--以云南沾益退化天坑为例[J].生态学报,2018(13):4704-4714.
[8]杨洁羽.高寒草甸植物群落种间关系:传粉者介导的相互作用及放牧影响[D].兰州:兰州大学,2018.
[9]萨茹拉,赛西雅拉图,春风,等.典型草原定居放牧草场群落特征与土壤有机质含量关系分析[J].干旱区资源与环境,2018,32(09):145-149.
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